Saving too much is an obsession, and not healthy in the long term.    Just commit to save maybe 30% or RM 500 of your salary at the beginning of each month and invest those amount wisely. The rest of money just spend it carefully and treat yourself once a while, it makes your life a little bit more worth living. If you still have some extra money left over put in your vacation fund or something.

If you only save, then with the low interest rate you get, sooner or later it get eaten up by inflation. You need to yield at least above the current inflation rate of 3%-5%.

For me I practice the following...

1 month Expenses in Cash form in SA - For Daily use

6 months Expenses in e-FD form (1 Month-Auto renew) - For emergency Use

The rest in investment, that is well diversified across equity, bonds and others. So if 'kena' 1 bad investment got another 9 other investment to backup. If you are conservative (scared to lose), put a majority of your investment in bonds and only some in high quality equity. With careful portfolio management, you can lower your investment risk substantially by diversification.

So far works well for me. 

Rickk, your fuel consumption = 1km using 1 liter?! Assuming RM1.80 = 1 liter of petrol?!! 
If it's true, shere's something very wrong with your car's fuel burning if true. It's usually a sign that there's something majorly wrong with the car - better bring it to have a total checking at a service centre. Safety first bro

My manual 19yr old Wira 1.5 averages 10km to 11km using 1 liter
My mum's 10yr old auto Wira 1.6 averages 8km to 9km using 1 liter